Productivity of labor in merchant blast furnaces ... December, 1928.
Productivity of labor in merchant blast furnaces ... December, 1928.
- Washington, U.S. Govt. print. off., 1929.
- viii, 145 p. incl. tables. 23 cm.
- Bulletin of the United States Bureau of labor statistics, no. 474. Miscellaneous series .
At head of title: U.S. Department of labor. James J. Davis, secretary. Bureau of labor statistics. Ethelbert Stewart, commissioner. Issued also as House doc. no. 423, 70th Cong., 2d sess.
l 29000060
Blast furnaces.
Labor productivity.
HD8051 / .A62 no. 474
At head of title: U.S. Department of labor. James J. Davis, secretary. Bureau of labor statistics. Ethelbert Stewart, commissioner. Issued also as House doc. no. 423, 70th Cong., 2d sess.
l 29000060
Blast furnaces.
Labor productivity.
HD8051 / .A62 no. 474